Casdin Partners GP, LLC (CIK 0001534260)

Latest company ownership

Shares held
102,151,785
Last filed at
Feb 10, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q1 2025Q4
Shares held
91,534,918
Last filed at
Dec 4, 2025
Confidence Score
97.4
2025Q4
Confidence Score History
2023Q2 2025Q4
Role: 10% Owner
Shares held
10,000,000
Last filed at
Oct 5, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q3 2025Q4
Shares held
5,957,165
Last filed at
Oct 17, 2025
Confidence Score
12.7
2025Q4
Confidence Score History
2019Q4 2025Q4
Role: Director
Shares held
973,260
Last filed at
Jul 28, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q3 2025Q4
Shares held
464,285
Last filed at
Jul 22, 2019
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 2, 2025 Dec 4, 2025 STANDARD BIOTOOLS INC. Director Buy 67.5 +350,000 0.47% $502.6K
Nov 24, 2025 Nov 26, 2025 STANDARD BIOTOOLS INC. Director Buy 100.0 +7,700,000 11.50% $10.1M
Nov 18, 2025 Nov 20, 2025 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,075,000 1.63% $1.4M
Nov 13, 2025 Nov 17, 2025 STANDARD BIOTOOLS INC. Director Buy 87.5 +925,000 1.37% $1.1M
Nov 7, 2025 Nov 12, 2025 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,175,000 1.84% $1.4M
Oct 15, 2025 Oct 17, 2025 BIOLIFE SOLUTIONS INC 10% Owner Sell 15.0 -750,000 -11.18% $21.4M
Sep 9, 2025 Sep 11, 2025 STANDARD BIOTOOLS INC. Director Buy 60.0 +100,000 0.16% $128.9K
Sep 3, 2025 Sep 5, 2025 STANDARD BIOTOOLS INC. Director Buy 75.0 +500,000 0.79% $635.8K
Aug 22, 2025 Aug 26, 2025 STANDARD BIOTOOLS INC. Director Buy 75.0 +525,000 0.84% $658.8K
Aug 22, 2025 Aug 22, 2025 GeneDx Holdings Corp. Director Sell 15.0 -500,000 -14.17% $60.5M
Aug 15, 2025 Aug 21, 2025 BIOLIFE SOLUTIONS INC 10% Owner Sell 15.0 -500,000 -6.94% $12.2M
Aug 13, 2025 Aug 15, 2025 STANDARD BIOTOOLS INC. Director Buy 75.0 +358,220 0.58% $443K
Aug 11, 2025 Aug 13, 2025 BIOLIFE SOLUTIONS INC 10% Owner Sell 15.0 -500,000 -6.49% $11.3M
Jun 10, 2025 Jun 12, 2025 BIOLIFE SOLUTIONS INC 10% Owner Sell 15.0 -1,000,000 -11.48% $23.8M
Feb 28, 2025 Mar 4, 2025 STANDARD BIOTOOLS INC. Director Buy 93.8 +4,879,174 4.20% $5.1M
Aug 27, 2024 Aug 29, 2024 STANDARD BIOTOOLS INC. Director Buy 67.5 +250,000 0.44% $546.8K
Aug 22, 2024 Aug 26, 2024 STANDARD BIOTOOLS INC. Director Buy 77.5 +750,000 0.69% $1.5M
Aug 19, 2024 Aug 21, 2024 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,250,000 2.29% $2.4M
Aug 14, 2024 Aug 16, 2024 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,200,000 2.25% $1.9M
Aug 9, 2024 Aug 13, 2024 STANDARD BIOTOOLS INC. Director Buy 92.5 +1,575,408 3.04% $2.6M
Aug 7, 2024 Aug 9, 2024 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,069,562 1.08% $1.7M
Aug 2, 2024 Aug 6, 2024 STANDARD BIOTOOLS INC. Director Buy 87.5 +1,200,000 1.89% $1.9M
Aug 1, 2024 Aug 5, 2024 GeneDx Holdings Corp. Director Buy 100.0 +413,655 12.00% $13.3M
Jun 3, 2024 Jun 5, 2024 GeneDx Holdings Corp. Director Buy 92.5 +130,000 3.49% $2.8M
May 29, 2024 May 31, 2024 GeneDx Holdings Corp. Director Buy 85.0 +40,000 1.08% $842.6K
May 23, 2024 May 28, 2024 STANDARD BIOTOOLS INC. Director Buy 67.5 +100,000 0.22% $260K
May 23, 2024 May 28, 2024 GeneDx Holdings Corp. Director Buy 92.5 +170,000 4.83% $3.4M
May 20, 2024 May 22, 2024 STANDARD BIOTOOLS INC. Director Buy 87.5 +600,000 1.32% $1.5M
May 15, 2024 May 17, 2024 STANDARD BIOTOOLS INC. Director Buy 92.5 +1,352,072 3.06% $3.5M
May 13, 2024 May 15, 2024 GeneDx Holdings Corp. Director Buy 87.5 +50,000 1.44% $1.2M
Mar 4, 2024 Mar 6, 2024 GeneDx Holdings Corp. Director Buy 85.0 +40,900 1.19% $357.7K
Mar 4, 2024 Mar 6, 2024 STANDARD BIOTOOLS INC. Director Buy 85.0 +251,403 1.11% $646.2K
Oct 19, 2023 Oct 23, 2023 BIOLIFE SOLUTIONS INC 10% Owner Buy 100.0 +927,165 11.92% $10.4M
Aug 9, 2023 Aug 11, 2023 BIOLIFE SOLUTIONS INC 10% Owner Buy 75.0 +58,465 0.76% $771.7K
May 19, 2023 May 23, 2023 BIOLIFE SOLUTIONS INC 10% Owner Buy 77.5 +74,973 0.98% $1.7M
May 17, 2023 May 19, 2023 STANDARD BIOTOOLS INC. Director Buy 100.0 +1,200,000 100.00% $2.6M
May 16, 2023 May 18, 2023 BIOLIFE SOLUTIONS INC 10% Owner Buy 77.5 +75,027 0.99% $1.6M
Oct 3, 2022 Oct 5, 2022 MAXCYTE, INC. 10% Owner Sell 17.5 -735,786 -6.85% $4.5M
Jul 1, 2022 Jul 6, 2022 MAXCYTE, INC. 10% Owner Sell 15.0 -3,235,548 -23.16% $13.9M
Jul 30, 2021 Aug 3, 2021 MAXCYTE, INC. 10% Owner Buy 100.0 +1,800,000 14.79% $23.4M
Jul 26, 2021 Jul 28, 2021 Absci Corp Director Buy 100.0 +1,562,500 30.15% $25M
Nov 24, 2020 Nov 27, 2020 BIOLIFE SOLUTIONS INC 10% Owner Buy 100.0 +1,600,000 27.40% $36M
Jul 1, 2020 Jul 2, 2020 BIOLIFE SOLUTIONS INC 10% Owner Buy 100.0 +990,583 20.43% $14.4M
May 22, 2020 May 26, 2020 BIOLIFE SOLUTIONS INC 10% Owner Buy 100.0 +476,191 10.89% $5M
May 14, 2020 May 18, 2020 BIOLIFE SOLUTIONS INC 10% Owner Buy 100.0 +1,904,762 77.16% $20M
Nov 19, 2019 Nov 21, 2019 BIOLIFE SOLUTIONS INC 10% Owner Buy 85.0 +40,000 1.65% $616.5K
Jul 22, 2019 Jul 22, 2019 Fulcrum Therapeutics, Inc. 10% Owner Buy 100.0 +140,000 30.15% $2.2M